Home / 28,866.78-39,835.80-16,291.62

Finding the Fourth Proportional to 28,866.78, 39,835.80 and 16,291.62

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Solution

The fourth proportional to 28,866.78, 39,835.80 and 16,291.62 is: 22,482.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,866.78 : 39,835.80 = 16,291.62 : x
  2. Step 2: Convert to fraction form
    28,866.78/39,835.80 = 16,291.62/x
  3. Step 3: Cross multiply
    28,866.78x = 39,835.80 × 16,291.62
  4. Step 4: Simplify right side
    28,866.78x = 648,989,716.00
  5. Step 5: Solve for x
    x = 648,989,716.00/28,866.78
  6. Step 6: Final answer
    x = 22,482.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.